Visual explanationFree resource
Visual medical education by Armando Hasudungan
Medical science, drawn into focus.
Explore visual explanations that reveal how the facts, processes and clinical patterns fit together—then discover the coming AH study platform, built to guide what you study next and check what stuck.
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Clear visual explanations used by medical and allied-health learners around the world.
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Chronic Widespread Pain
Overview Chronic widespread pain (CWP) is a nociplastic pain phenotype defined by persistent (≥3 months) pain affecting multiple body regions, with high comorbidity with fatigue, sleep disturbance, mood symptoms and functional impairment. The pooled global prevalence is ~10% (women>men), with higher rates in lower-HDI settings. CWP is recognised in ICD-11 within the chronic primary pain…
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Myelofibrosis
Overview Myelofibrosis is a type of myeloproliferative diseasecharacterized by clonal myeloid expansion, followed by progressive fibrous connective tissue deposition in the bone marrow, resulting in bone marrow failure. Clonal evolution can also occur, with an increased risk of transformation to acute myeloid leukemia. In addition, disabling constitutional symptoms secondary to the high circulating levels of…
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Granulomatosis with Polyangiitis
Overview Granulomatosis with polyangiitis (formerly Wegener’s granulomatosis) is a rare, chronic, systemic necrotising vasculitis affecting small-to-medium-sized vessels, characterised by granulomatous inflammation, necrotising vasculitis, and tissue destruction, primarily involving the upper and lower respiratory tracts and kidneys. It falls under the ANCA-associated vasculitides (AAV). Peak incidence is in the 5th–6th decade, with slight male predominance and…
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Parkinson Plus Syndrome
Overview Parkinson-Plus syndromes (also known as atypical parkinsonism ) are a heterogeneous group of neurodegenerative diseases characterized by parkinsonian features—bradykinesia, rigidity, tremor, and gait impairment—occurring alongside additional ("plus") prominent neurological signs. These extra features typically include early postural instability with falls, vertical supranuclear gaze palsy, severe autonomic failure, cerebellar ataxia, early cognitive decline, or cortical…
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Mitral Stenosis
Overview Mitral stenosis causes an obstruction to blood flow from the left atrium to left ventricle usually as a result of rheumatic heart disease. The stenosis results in increased pressure in the left atrium, pulmonary vasculature and right side of heart. Mitral valve disease is a frequent cause of heart failure and death. Mitral valve area:…
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VEXAS Syndrome
Overview VEXAS syndrome is a late-onset, adult autoinflammatory disease caused by acquired somatic mutations in the UBA1 gene, leading to dysregulated innate immunity, systemic inflammation, and overlapping haematologic and rheumatologic manifestations. VEXAS stands for Vacuoles, E1 enzyme, X-linked, Autoinflammatory, Somatic. It predominantly affects older males due to its X-linked nature and typically presents with refractory…
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Psoriatic Arthritis
Overview Psoriatic arthritis (PsA) is a chronic, immune-mediated inflammatory arthritis associated with psoriasis, affecting up to 30% of patients with skin psoriasis. It commonly presents in adults aged 30–50 years, with equal gender distribution. The disease is highly variable, involving peripheral joints, axial skeleton, entheses, and skin/nails. Delay in diagnosis is common and can result…
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Explanations learners return to.
Raynaud's Phenomenon – mechanism
Learn the underlying mechanism of Raynaud's phenomenon, including how vascular spasm leads to color changes in response to cold or stress. This video explains the pathophysiology and differences between primary and secondary Raynaud's.
Mechanism of Breathing
Explore the mechanism of breathing, including how pressure changes in the thoracic cavity drive air movement during inspiration and expiration. This video explains the roles of the diaphragm, intercostal muscles, and lung compliance in ventilation.
Viral structure – capsid, envelope and genome overview
Discover how viral structure dictates infection, immunity, and transmission — learn viral structure, genomes, capsids, envelopes, and replication basics. This concise explainer breaks down virus biology using clear analogies and key technical terms like capsid, nucleocapsid, positive-sense and negative-sense RNA, segmented genomes, reverse transcriptase, and viral glycoproteins. You’ll understand how genomes (DNA or RNA, single-…
Our mission
Medical science is complex. Understanding it should feel possible.
Armando Hasudungan turns difficult medical science into clear visual explanations and connected learning experiences—so learners can see the whole picture, remember what matters and find a clearer way forward.
See it clearly
Turn abstract processes and invisible relationships into something the learner can picture.
Connect the pieces
Build understanding around how concepts fit together—not a pile of isolated facts.
Make it useful
Help learners move from explanation to recall, revision and the next logical step.
What clarity feels like
When the topic stops being a blur.
Learners do not come back because the subject became easy. They come back because the explanation gave them a picture they could work with.
“Armando's teaching style gives me the foundational knowledge.
Jessica Payne-Burnett
Medical Student, Charles Sturt University
“The notes I make during his videos help me retain everything better.
Ayesha RaiStudent, Islamabad Medical and Dental College
“The drawings are amazing and super easy to remember.
Reem Mohamed Khair Abdalrazig
Student, Neelain University
Coming soon: the AH study platform
The explanation is only the start.
The free library helps you find a clear explanation. The AH platform is being built to help you connect the resources, follow a clearer path and check what actually stuck.
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New and worth a look
Keep building the picture.
Chronic inflammatory demyelinating polyneuropathy (CIDP)
Overview Chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) is an acquired immune-mediated disorder of peripheral nerves and nerve roots, causing demyelination, impaired nerve conduction, weakness, sensory disturbance and reduced or absent reflexes. Typical CIDP causes progressive or relapsing symmetrical proximal and distal weakness with sensory loss developing over at least 8 weeks . This time course helps…
View this topic ↗About Visualising Medicine
Good education does not remove complexity. It makes complexity feel simple.
Visualising Medicine is the team behind Armando Hasudungan. We bring together medicine, illustration, writing and technology to make difficult ideas clearer—and build better ways for learners to use them.